I have a firewall / proxy that has an extremely high load, but I can't figure out what's using it. No real cpu usage, the disks are sleeping except for a little log activity, it's on gigabit ethernet and not close to maxing out... Command link stuff runs fast, nothing seems slow, yet the load is sky-high. IME this kind of load is associated with a lot of disk I/O, but that's not the case here.
What could be causing this, what else factors into the load?
Linux myfirewall.mydomain.com 2.6.8 #1 SMP Mon Oct 18 11:20:22 CDT 2004 i686 i686 i386 GNU/Linux
07:55:43 up 1503 days, 17:13, 5 users, load average: 26.50, 26.33, 26.25
Tasks: 245 total, 2 running, 243 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.6% us, 1.1% sy, 0.0% ni, 95.0% id, 2.7% wa, 0.2% hi, 0.5% si
Mem: 3895508k total, 3582272k used, 313236k free, 207468k buffers
Swap: 2040244k total, 112664k used, 1927580k free, 1358744k cached